I should have viewed the pic first. You do have the 37 pin version and the keystone will not work.
You have two options:
Front mounted: http://sine.ni.com/nips/cds/view/p/lang/en/nid/210164
Or a cabled assembly: http://sine.ni.com/nips/cds/view/p/lang/en/nid/201613 and http://sine.ni.com/nips/cds/view/p/lang/en/nid/11621
In reality you can goodle 37pin dsub connectivty and find something but NI offers something right no the site. You could cut a cheap 37 pin cable and make your own system but in the end you will have to get 37 pin dsub connectors.
Please follow the wiring instructions from rocket or look on page 7 of the manual for wiring.
You can do front mounted or cabled either one but you need a breakout to the 37 pin dsub and the keystone will not work.